Improvement in turbine water-wheels



UNTTED STATES PATENT OEEIoE. l'

JACOB OROFT, OF SOIPIO, UTAH TERRITORY.

IMPROVEMENT IN TUBINE WATER-WHEELS.

Specification forming part of Letters Patent No. 209,662, dated November 5, 1878; application filed July 16, 187B.

To all whom it may concern:

Be it knowntha-t I, JACOB CROF'1,of Scipio, in the county of Millard, Utah Territory, have invented a new and useful Improvement in Turbine Water-Wheels, of which the following is a specification:

Figure 1 is a vertical section of my improved wheel. Fig. 2 is a top View ofthe same, partly in section, through the line x x Fig. l. Fig. 3 is a detail section taken through the liney y, Fig. 1. Fig. 4 is a detail view of a gate. Fig. 5 is a detail view of a post.

Similar letters of reference indicate corresponding parts.

The object of this invention is to furnish an improved wheel which shall beso constructed as to prevent back-pressure by the wateragainst the casing as it escapes from the buckets, which will prevent sand and other substances in the water from entering around the shaft and cut ting or wearing it, and which will enable the gates to be secured in place in a simple and convenient way.

A represents the wheel-shaft, the lower end of which revolves upon the step B, attached to the spider O, the arms of which are secured to the lower edge of the lower part, D, of the casing. outwardly-projecting ring-flange at-its upper end, which forms the lower parts of the chutes.

E is the upper part of the casing, which is connected with the lower part, D, and held at the proper distance from it by thc posts F, which are secured to and -between the said parts by bolts G.

Upon the center of the casing E is formed a hub, to which is attached the centeringbox H, which is provided with blocks, angleirons, and set-screws for centering the shaft-in the usual way. Upon the top of the centeringbox H is formed, or to it is secured, a stuffingbox, I, to receive packing, to prevent sand and other substances in the water from working in The casing D is providedwith anl To the upper forward corners of the gates L are pivoted the outer ends of arms M, the inner ends of which are pivoted to a rin g-p'late, N, placed and revolving around the hub ot' the upper` part, E, of the casing, and which is held down to its place by a collar, O, and set-screwP. To the shaft-A, between the parts D E of the casing, is attached the wheel Q, the buckets R of which curve downward and rearward, and upon their lower outer corners are formed flanges S, which project upward and are secured to the lowerside of the adjacent buckets.

The lower parts of the buckets It project down into the cylindrical part of the casing D, and the anges S prevent any back-press ure from the water against the said casing D. Having thus described my invention, Iclaim asnew and desire to secure by Letters Patentv 1. The combination of lugs J on posts and lugs K on the inner sides of gates,'said lugs being pivoted together, for the purpose set forth.

2. The rearwardly and downwardly curved buckets of a turbine wheel, provided ywith 4flanges S projecting up and attached to lowerside of adjacent buckets, in combination with casing D, for the purpose specified.

JACOB CROFT. Witnesses: Y

JOHN POWELL, EDWARD PARTRIDGE. 

